<template>
    <div class="login-container">

        <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">

            <div class="title-container">
                <h3 class="title">{{ $t('login.title') }}</h3>
                <lang-select class="set-language" />
            </div>

            <el-form-item prop="username">
                <span class="svg-container">
                    <svg-icon icon-class="user" />
                </span>
                <el-input v-model="loginForm.userName" :placeholder="$t('login.username')" name="username" type="text" auto-complete="on" />
            </el-form-item>

            <el-form-item prop="password">
                <span class="svg-container">
                    <svg-icon icon-class="password" />
                </span>
                <el-input :type="passwordType" v-model="loginForm.passWord" :placeholder="$t('login.password')" name="password" auto-complete="on" />
                <span class="show-pwd" @click="showPwd">
                    <svg-icon icon-class="eye" />
                </span>
            </el-form-item>

            <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;" @click.native.prevent="handleLogin">{{ $t('login.logIn') }}</el-button>

            <!-- <el-button class="thirdparty-button" type="primary" @click="showDialog=true">{{ $t('login.thirdparty') }}</el-button> -->
        </el-form>

        <el-dialog :title="$t('login.thirdparty')" :visible.sync="showDialog" append-to-body>
            {{ $t('login.thirdpartyTips') }}
            <br>
            <br>
            <br>
            <social-sign />
        </el-dialog>

    </div>
</template>

<script>
    import { isvalidUsername } from '@/utils/validate';
    import LangSelect from '@/components/LangSelect';
    import SocialSign from './socialsignin';

    export default {
        name: 'Login',
        components: { LangSelect, SocialSign },
        data() {
            const validateUsername = (rule, value, callback) => {
                if (!isvalidUsername(value)) {
                    callback(new Error('Please enter the correct user name'));
                } else {
                    callback();
                }
            };
            const validatePassword = (rule, value, callback) => {
                if (value.length < 6) {
                    callback(
                        new Error('The password can not be less than 6 digits')
                    );
                } else {
                    callback();
                }
            };
            return {
                loginForm: {
                    userName: '',
                    passWord: ''
                },
                loginRules: {
                    userName: [
                        {
                            required: true,
                            trigger: 'blur',
                            validator: validateUsername
                        }
                    ],
                    passWord: [
                        {
                            required: true,
                            trigger: 'blur',
                            validator: validatePassword
                        }
                    ]
                },
                passwordType: 'passWord',
                loading: false,
                showDialog: false,
                redirect: undefined
            };
        },
        watch: {
            $route: {
                handler: function(route) {
                    this.redirect = route.query && route.query.redirect;
                },
                immediate: true
            }
        },
        created() {
            // window.addEventListener('hashchange', this.afterQRScan)
        },
        destroyed() {
            // window.removeEventListener('hashchange', this.afterQRScan)
        },
        methods: {
            showPwd() {
                if (this.passwordType === 'passWord') {
                    this.passwordType = '';
                } else {
                    this.passwordType = 'passWord';
                }
            },
            handleLogin() {
                if (
                    this.loginForm.userName.length == 0 ||
                    this.loginForm.passWord.length == 0
                ) {
                    this.$message({
                        message: '用户名和密码不能为空',
                        type: 'error'
                    });
                } else {
                    this.$refs.loginForm.validate(valid => {
                        if (valid) {
                            // this.loading = true;
                            this.$store
                                .dispatch('LoginByUsername', this.loginForm)
                                .then(msg => {
                                    // this.loading = false;
                                    this.$router.push({
                                        path: this.redirect || '/example/list'
                                    });
                                })
                                .catch(() => {
                                    // this.loading = false;
                                });
                        } else {
                            console.log('error submit!!');
                            return false;
                        }
                    });
                }
            },
            afterQRScan() {
                // const hash = window.location.hash.slice(1)
                // const hashObj = getQueryObject(hash)
                // const originUrl = window.location.origin
                // history.replaceState({}, '', originUrl)
                // const codeMap = {
                //   wechat: 'code',
                //   tencent: 'code'
                // }
                // const codeName = hashObj[codeMap[this.auth_type]]
                // if (!codeName) {
                //   alert('第三方登录失败')
                // } else {
                //   this.$store.dispatch('LoginByThirdparty', codeName).then(() => {
                //     this.$router.push({ path: '/' })
                //   })
                // }
            }
        }
    };
</script>

<style rel="stylesheet/scss" lang="scss">
    /* 修复input 背景不协调 和光标变色 */
    /* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

    $bg: #283443;
    $light_gray: #eee;
    $cursor: #fff;

    @supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
        .login-container .el-input input {
            color: $cursor;
            &::first-line {
                color: $light_gray;
            }
        }
    }

    /* reset element-ui css */
    .login-container {
        .el-input {
            display: inline-block;
            height: 47px;
            width: 85%;
            input {
                background: transparent;
                border: 0px;
                -webkit-appearance: none;
                border-radius: 0px;
                padding: 12px 5px 12px 15px;
                color: $light_gray;
                height: 47px;
                caret-color: $cursor;
                &:-webkit-autofill {
                    box-shadow: 0 0 0px 1000px $bg inset !important;
                    -webkit-text-fill-color: $cursor !important;
                }
            }
        }
        .el-form-item {
            border: 1px solid rgba(255, 255, 255, 0.1);
            background: rgba(0, 0, 0, 0.1);
            border-radius: 5px;
            color: #454545;
        }
    }
</style>

<style rel="stylesheet/scss" lang="scss" scoped>
    $bg: #2d3a4b;
    $dark_gray: #889aa4;
    $light_gray: #eee;

    .login-container {
        position: fixed;
        height: 100%;
        width: 100%;
        background-color: $bg;
        .login-form {
            position: absolute;
            left: 0;
            right: 0;
            width: 520px;
            max-width: 100%;
            padding: 35px 35px 15px 35px;
            margin: 120px auto;
        }
        .tips {
            font-size: 14px;
            color: #fff;
            margin-bottom: 10px;
            span {
                &:first-of-type {
                    margin-right: 16px;
                }
            }
        }
        .svg-container {
            padding: 6px 5px 6px 15px;
            color: $dark_gray;
            vertical-align: middle;
            width: 30px;
            display: inline-block;
        }
        .title-container {
            position: relative;
            .title {
                font-size: 26px;
                color: $light_gray;
                margin: 0px auto 40px auto;
                text-align: center;
                font-weight: bold;
            }
            .set-language {
                color: #fff;
                position: absolute;
                top: 5px;
                right: 0px;
            }
        }
        .show-pwd {
            position: absolute;
            right: 10px;
            top: 7px;
            font-size: 16px;
            color: $dark_gray;
            cursor: pointer;
            user-select: none;
        }
        .thirdparty-button {
            position: absolute;
            right: 35px;
            bottom: 28px;
        }
    }
</style>
